3 weeks

So tomorrow I will be 3 weeks along according to pregnancy.com. The baby is now officially called an embryo, instead of a whatcha-call-it. This is a rough idea of what it looks like:


Your baby is still very small, only about 0.014 inches to 0.04 inches in length. The embryo, probably in about its second week of development, has multiplied to about 150 cells. Your baby is being nourished by secretions from the uterine lining. Layers of cells already are specialized according to functions. The outer layer will become the nervous system, skin and hair; the inner layer will be the breathing and digestive organs; and the middle layer will become the skeleton, bones, cartilage, muscles, circulatory system, kidneys and sex organs.